Slamfire Kit (Caliburn) 3D printable model by Sillybutts

Slamfire Kit (Caliburn)

Source: Thingiverse by Sillybutts

The Slamfire Kit (Caliburn) is a free printable 3D model from Thingiverse by Sillybutts. Changelog: 7-22-21 8:21PM EST: Fixed sear STL position to be flat. You can download the STL file from the original listing below and print it at home.

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30 saves Source: Thingiverse Updated 2026-06-16

Tags: Slamfire, Kit, (Caliburn)

About this model

Changelog: 7-22-21 8:21PM EST: Fixed sear STL position to be flat. Changelog: 7-28-21 11:00PM EST: Improved built in support for MagUpper, added supports to the StockAlt prints that improve bed adhesion. Changelog: 7-30-21 4:08PM EST: Updated the Pinnedarm to v2, which is fully printed (instead of using a piece of screwed in PVC on the tip of the arm) After 4 months of development, I present: The Caliburn Slamfire kit! (Also known as the Slamfire is Much Preferred kit, or SIMP kit (thanks for that name Slug)) This is a kit that replaces the StockAlt, MagUpper, and top rail of the Caliburn. In turn, it gives you slamfire! The kit does NOT modify the existing grip, trigger, or sear of the blaster. This kit doesn't touch the existing trigger at all. It functions completely independently from …

Frequently asked questions

Is this 3D model free to download?
Yes. Slamfire Kit (Caliburn) is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Sillybutts.
Who made this model?
Designed by Sillybutts, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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